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United States Patent | 5,635,581 |
Chiang ,   et al. | June 3, 1997 |
The present invention relates to a polymer including a fullerene core and a plurality of prepolymer units. Each of the prepolymer units is linked to a carbon atom of the core by a moiety independently selected from the group consisting of --O--(C.dbd.O)--NH--, --NH--(C.dbd.O)--NH--, --0--(C.dbd.S)--NH--, and --N--(C.dbd.S)--NH--.
Inventors: | Chiang; Long Y. (Taipei, TW); Wang; Lee-Yih (Taipei, TW); Hsieh; Kuo-Huang (Taipei, TW) |
Assignee: | National Science Counsel (TW) |
Appl. No.: | 345251 |
Filed: | November 28, 1994 |
Current U.S. Class: | 528/60; 525/330.4; 525/330.5; 525/332.7; 525/333.1; 525/410; 525/418; 525/452; 525/461; 525/474; 528/85 |
Intern'l Class: | C08G 081/00 |
Field of Search: | 525/330.4,330.5,332.7,333.1 528/60,85 |
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5030695 | Jul., 1991 | Cozewith et al. | 525/207. |
5177248 | Jan., 1993 | Chiang et al. | 560/86. |
5292813 | Mar., 1994 | Patil et al. | 525/240. |
5294732 | Mar., 1994 | Chiang et al. | 560/86. |
Foreign Patent Documents | |||
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ET Samulski et al. Chem Mater 4 (1992) 1153. A.O. Patil, et al., "Fullerene Functionalized Polymers", Polymer Bulletin, 30, 187-190 (1993). Wooley, et al., "Fullerene-Bound Dendrimers: Soluble Isolated Carbon Clusters", J. Am. Chem. Soc., 1993, 115, 9836-9837. Chiang, et al., "Efficient Synthesis of Polyhydroxylated Fullerene Derivatives via Hydrolysis of Polycyclosulfated Precursors", J. Org. Chem., 1994, 59, 3960-3968. Andreas Hirsch, "Fullerene Polymers", Advanced Materials, 5:859-561, 1993. |